TN  2.4-' 


Bixby 


j|  atalogue  of  Utah  minerals  and  localities 


THE  LIBRARY 

OF 

THE  UNIVERSITY 
OF  CALIFORNIA 

LOS  ANGELES 


The  RALPH  D.  REED  LIBRARY 


1>KI'ARTMIOT  OF  tJKOI.OGY 

UNIVERSITY  OF  CALIFORNIA. 
I  .OS  A.NOKI.KS,   CALIF. 


ATALOGUE 
F 


JTAH   MINERALS 

and   LOCALITIES 


!th    Descriptive    List 
id  Notes  for  Collectors 


MAYNARD    BIXBY 


A  CATALOGUE  OF 

UTAH 
MINERALS    AND    LOCALITIES 

With  Descriptive  List, 
And  Notes  for  Collectors. 

-by- 

MAYNARD    BIXBY. 

Salt  Lake  City,  Utah. 

1904. 


Copyright,    1902, 

by 

MAYNARD    BIXBY. 
(Third    Ed.) 


COMPLIMENTS  OF 


R.    H.    OFFICER    &    CO., 

ASSAYERS    AND    CHEMISTS, 


SALT  LAKE  CITY,  UTAH. 


WRITE  FOR  PRICES. 


YOU  WANT  A  GOOD  MINE! 


MANY  YEARS  EXPERIENCE 


IN  MINl^S  AND  MINERALS. 


WRITE  TO  ME 


MAYNARD  BIXBY. 

SALT  LAKE  CITY,  UTAH. 


MINERAL   LOCALITIES. 


BEAVER  COUNTY. 

(Vy      Beaver  City,  near;    hyalite,  banded  in  brownish  and 
white  to  nearly  colorless. 

Beaver  Lake  District;  azurite.  0.  K.  Mine;  bornite, 
chalcocite,  chalcopyrite,  covellite,  copper,  limonite,  mal- 
achite, molybdite,  pyrite. 

Bradshaw  District;  aragonite,  aurichalcite,  cerussite, 
cuprite,  malachite. 

Cactus  Gulch;  chalcopyrite,  garnet,  limonite,  quartz, 
crystals  enclosing  tourmaline. 

English  Springs;  Iron  ores. 

Frisco;  angelsite,  argentite,barite,  brdchantite,  cerar- 
gyrite,  cerussite,  dufrenoysite,  galena,  garnet,  pyrargy- 
rite,  proustite,  selenite,  sphalerite,  often  phosphorescent, 
zincite,  wollastonite. 

Granite  District;  almandine  garnet,  barite,  bismuth  - 
inite. 

Indian  Creek;  gold. 

Mooney  Springs;  topaz. 

Rock  Corral;  9  miles  east  of  Milford.ortuoclase  crys- 
tals, smoky  quartz  crystals,  prase. 

Rocky  District;   Adelia  Mine,  wulfenite. 

Star  District;  azurite,  bismuthinite,  galena,  cerargyr- 
itc.  (••erii>site,  malachite. 

Burning  Moscow  Mine;  goslarite. 

Sulphurvale;   sulphur. 
Elsewhere;   bismite,  bismutite. 

BOX    ELDER    COUNTY. 


Copper  Mountain  Mine;   azurite,  cuprite,  malachite. 

Dove  Creek;   gold,  garnet. 

Lucin  District;  cerussite,  galena,  Empire  Mine,  wul- 
fenite in  aggregate  of  thin  yellow  plates  and  crystals. 

North  Shore  of  Salt  Lake;  asphaltum  as  an  exuda- 
tion, petroleum  in  shale. 

Park  Valley  Mines;  galena,  gold,  pyrite;  monazite  (?) 
at  Century  Mine. 

Sierra  Madre  District;  bornite,  cerussite.  chalcopyrite, 
galena,  gold,  malachite,  molybdenite,  rose  quartz. 

New  Foundland  District;  cerussite,  galena,  copper  min- 
erals. 

Vipont  Mine;     wire  silver  and  gold,  ruby  silver,  pyrite. 

Elsewhere;    Utah  onvx    (aragonite.  or  travertine.). 

/"^' M  f\^^mf^\r^i 


Utah  Minerals  and  Localities. 


CACHE  COUNTY. 

Blacksmith  Fork;  cernssite,  galena. 

La  Plata;   a/.unte.  eerussite,  galena,  malachite. 

Logan;   near,  cuprite,  variety  chalcotrichite. 

Richmond;    near,  galena. 

Southeastern  part  of  County;  iron  ores. 

CARBON  COUNTY. 

Castle  Gate;   coal,  native  coke. 
Eastern  part  of  County;   iron  ores. 
Pleasant  Valley,  Sunnyside;    coal. 

Whitmore  Canon;  ozocerite  in  sandstone,  asphaltuni 
and  other  hydrocarbons. 

Winter  Quarters  Mine;  eoal,  co  pa  lite  on  coal. 

DAVIS  COUNTY. 

Antelope  Island;  copper  minerals,  cpidnte,  garnet,  mi- 
caceous hematite. 

Farmington,  in  hills  east  of;  a/airite.  bornite.  gold, 
malachite. 

Lake  Shore  in  winter;  mirabilite. 

EMERY  COUNTY. 

Castle  Valley;  agates,  azurite.  and  malachite  in  sand- 
stone, chalcedony,  ppsomite  (?),  silicih'ed  trunks  of  trees 
containing  pockets  of  kose  quartz  crystals. 

Copper  Globe  Mine;   copper  minerals. 

San  Rafael  River;  red  alabaster. 

San  Rafael  Swell,  S  E  of  Emery;  carnotite,  gummite, 
tiruninitc. 

Summerville  District;  copper  minerals,  cerus-ite.  gu 
Icna. 

GARFIELD  COUNTY. 

Cannonville;    wheelerite. 

Coyoto,  near;   (.rpiruent.  realgar,  stibnite. 

Between  Junction  and  Coyoto;  copper  minerals. 

Henry  Mts;  bornite.  ehalcopyrite.  coal,  gold,  octa- 
hedral pyrite. 

Moss  Agate  Hill  near  Panguitch;   moss  agates. 

GRAND  COUNTY. 

Cisco,  near:  agates,  fine  red  jasper  casts  of  fossil  shells 
chalcedony,  travertine. 

Richardson,   near:    carnotite.   copper   minerals,   galena. 
Salt  Wash;    copper  minerals. 
Thompsons,  near:   selenite  crystals. 

IRON    COUNTY. 

Cedar  City,  west  of;    magnetite  crystal-,  ncca-ionally 


Utah  Minerals  and  Localities. 


with  apatite  crystals,  lodestone.  In  hills  east  of  Cedar 
City;  coal,  seknite. 

Coyote  District;  orpiment,  realgar  in  strata  under 
lava.  stibnite. 

State  Line;    argentite,  gold,  pyrite,  silver  sulphides. 

Southeastern  part  of  Co.;  coal. 

JUAB   COUNTY. 

Bavarian  Con.  Mine,  3  miles  S  E  of  Eureka;  seam  of 
coal  in  porphyritic  formation. 

Diamond  District;  cerussite.  galena,  quartz  crystals 
.in  losing  liquids  at  Miller  Mine. 

Fish  Springs;  angelsite  (?)  cerargyrite,  cerussite, 
galena. 

Tintic  District;  Boss  Tweed  Mine;  azurite,  cuprite, 
malachite,  bismite. 

Carissa  Mine;  aurichalcite,  azurite.  barite,  bismutite, 
brochantite,  calcite,  chrysocolla,  conichalcite,  cuprite, 
.copper,  onargito.  lettsomite,  malachite,  mixite,  olivenite, 
pittiscite,  sccrodite.  utahite.  and  near  by,  greenish  gar- 
net in  limestone. 

Emerald   Mine;    native  bismuth   crystals. 

Mines  of  Eureka;  aragonite,  argentite.  anglesite,  azur- 
ite, luirite.  brochantite,  calcite.  calamine.  cerargyrite 
crystals,  cerussite  crystals,cbrysocola.  clinoclasite  crys- 
tals, conichalcite,  euprit?.  enargite.  erimte,  gold,  galena. 
jarcsite  crystals,  leadhillite  crystals,  limonite.  Hnarite 
crystals,  malachite,  melaconite.  mixite,  mimetite,  red, 
white  and  green  oliventite,  variety  of  oliventite  contain- 
ing /.inc.  pearceite  crystals,  pyrite,  pharmacosiderite, . 
Hi-art/  f-ry-'tal^.  snlnhur  crystals  occasionally  included 
in  aivjclesite  crystals,  silicious  stalactites,  silver,  selen- 
ite,  tyrolite  crystals,  utahite  crystals,  zeunerite  crystals. 
l'-cud  inorphs  of  dolomite  and  oliventite  after  calcite. 
ami  many  other  posudomorphs.  Hodiva  Mine:  minium, 
selenite. 

Homestake  and  Shoebridge  Mines;    enargite  crystals. 

Humbup;  Mine:  anglesite.  cerussite.  galena,  stephanite. 

Iron  Mine;  bi«muth  minerals,  cerargyrite.  hematite, 
limonite. 

Levan,  near; variegated  alabaster  of  brownish  and 
yellowish  tints. 

Mines  cf  Mammoth;  ararentite.  aragonite,  azurite, 
lun-ite.  borickite  ('!).  brcchantite,  calcite,  cerussite, 
chenevi^ite,  cerarpyrite,  clinoclasite,  cuprite,  conichal- 
cite,  enargite,  erinite,  galena,  gold,  jarosite,  lettsomite, 
malachite,  melaconito.  mixite,  oliventite,  pyrite.  phar- 
macosiderite.selenite,  sccrodite,  tyrolite,  utahite.  pseu- 
domorphs  of  limonite.  malachite,  and  quartz  after  cal- 
cite. also  a  great  variety  of  other  pseudomorphs.  stal- 
actitic  hematite,  and  masses  of  curled  plates  of  hematite. 

Nephi;   gypsum,  halite. 


Utah  Minerals  and  Localities. 


Sioux  Mine;  azunte.  galena,  malachite,  quartz  and 
dolomite  ciystals. 

Sunbeam  Mine;  octahedral  pyrite. 

Swansea  Mine;  anglesite,  cerussite,  galena,  pyrite, 
silver,  sphalerite. 

Victor  Mine;   blue  calamine. 

Elsewhere  in  Tintic  Dist.;  bornite,  bismutite.  chalco'- 
pynte,  chaleocite,  aluminous  chrysocolla. 

'Thomas  Mts,  9  miles  northerly  from  Drum  Springs; 
chalcedony,  carnelian,  garnet,  variety  almandine,  hyalite, 
transparent  colorless  topaz  crystals  loose  in  soil  and  in 
rhyolite.  sherry  tinted  topaz  crystals  in  rhyolite  with 
bluish  quartz  crystals,  sanadin,  and  hematite  crystals. 
and  occasionally  including  these  minerals,  topaz  grayish 
and  opaque  from  inclusions  of  quartz  crystals. 

West  Tintic  District;  cerussite,  galena,  molybdenite, 
pyrite. 

KANE   COUNTY. 

Alum   Hills;    alum   minerals. 

Johnson  and  Kanab  Creeks;   coal,  gypsum. 

Kimball  Valley;  gypsum. 

Paria,  near;   alum  minerals,  coal,  gypsum. 

Paria  Mining  Co;   a/urite.  cuprite,  malachite. 

MILLARD   COUNTY. 

Antelope  Springs,  near;  pyrite  cubes,  altered  to  limon- 
ite.  in  slate. 

Black  Rock,  near;  red  and  black  mottled,  and  spheru- 
litic  obsidian. 

Cove  Creek  Sulphur  Mines;  sulphur  crystals,  pseudo- 
morphs  of  sulphur  atter  twigs,  leaves,  cones,  etc. 

Detroit  District;  azurite.  bismutite.  cuprite,  chalced- 
ony, hematite  crystals  three  miles  north,  jasper,  mal- 
achite, pyrite  altered  to  limonite,  pyrolusite. 

Kanosh,  near:  gypsum  in  large  bed,  manganese  min- 
erals. 

Sawtooth;  garnet,  copper  and  lead  minerals,  molyb- 
denite. 

Twin  Peaks;  white  apatite,  augite,  and  martite  crystals 
loose  in  soil,  and  in  place  in  eruptive  rocks. 

Elsewhere  in  CounLy;  galena.  Utah  onyx. 

MORGAN    COUNTY. 

Carbonate  Hill  Mine,  near  Peterson;    cerussite. 
Copper  Mountain  Mine;   copper  minerals. 

PIUTE  COUNTY. 

Belknap,   near:    pyrolusite. 

Bully  Boy  and  Webster  Mines;  large  ''sceptre"  quartz 
crystals,  \\ultenite. 


Utah  Minerals  and  Localities. 


Dalton  Mine;   gold,  rhodochrosite.  tellurium  minerals. 

Deer  Creek;  alum  minerals,  copper  minerals,  white 
barite  crystals,  selenite. 

East  of  Marysvale  in  foot  hills;  amethystine  quartz, 
selenite. 

Green  Eyed  Monster  Mine;  large  pyrite  crystals  al- 
tered to  limonite. 

Ohio;  cerussite,  chalcocite,  chalcopyrite.  galena,  mala- 
chite, tetrahedrite. 

Mt  Baldy;  anglesite,  argentite  at  Pluto  Mine,  cerus- 
site. cerargyrite  with  gold,  galena,  wulfenite,  tellurium 
minerals. 

Sevier  Canon,  near  Deer  Creek;   satin  spar. 

Six  miles  south  of  Marysvale  at  quicksilver  mine; 
onofrite,  tiemannite  crystals. 

Elsewhere  in  County;  galena,  garnet,  gold,  blue  hyalite. 

RICH   COUNTY. 

Western  part;    iron  minerals. 

SALT    LAKE    COUNTY. 

Alum  Point;    bushmanite. 

Big  Cottonwood;  anglesite,  aurichalcite  at  Carbonate 
and  Keeler  mines;  cerussite,  galena,  malachite,  pyrolus- 
ite.  wulfenite  at  Woodlawn  mine;  molybdenite,  cuprite 
at  Copper  King  Mine. 

Bingham;  Queen  Mine,  argenite,  barite;  Tiewaukee 
Mine,  binnite:  \Vinnamuck  Mine,  dufrenoysite.  pyrargyr- 
ite.  rhcdochrosite;  tetrahedrite  at  Kighty  Xine  Mine; 
line  crystals  of  enargite  at  Commercial  Mine. 

Bingham  Canon;  wood  replaced  by  copper  and  mala- 
chite, native  copper. 

Butterfield  Canon;  realgar,  orpiment.  luckite  and  mal- 
lardite  at  Lucky  Boy  Mine;  rhodochrosite. 

Carrs  Fork  and  Bingham  Canon;  native  cojjper,  placer 
gold. 

Draper,  near:   kaolinitf. 

Highland  Boy  Mine;   chalcopyrite.  cuprite,  pyrite. 

Little  Cottonwood;  dufrenoysite  rarely;  caledonite 
crystals;  chalcopyrite  at  Oxford  and  Geneva  Mines; 
linarite  at  Grizzly  and  other  mines;  wulfenite  in  deli- 
cate yellow  crystals  at  City  Rock  Mine.  At  Little 
Emma  Mine;  anglesite.  calamine.  chrysocolla,  cerussite. 
cervantite.  galena,  malachite,  pyrite.  pyrolusite,  sphaler- 
it?.  stephanite.  wulfenite. 

New  State  Mine,  near  mouth  of  Big  Cottonwood  Can- 
on; gold. 

Old  Jordan  and  Galena  Mines;  cerussite.  chalcopyrite, 
enargite  crystals,  galena,  goslarite,  milky  opal,  pisanite. 
(?)  pyrite,  sphalerite,  ''sceptre"  quartz  crystals,  tetra- 
hedrite crystals  with  wire  silver. 

Parley's  Canon;    greenish  granular  corundum. 

Salt  Lake  Shore;  mirabilite  in  winter. 


Utah  Minerals  and  Localities. 


SAN  JUAN  COUNTY. 

Golden  Queen  and  other  mines;   gold. 

Halletts  Creek  and  in  S  W  part  of  County;  coal. 

La   Sal   Mts;     copper    minerals,    mangan.te     crystals 
showing  fine  red  translucency,  molybdenite. 
-    Near  San  Juan  River  below  Bluff  City;   chalcopyrite, 
copper,  malachite,  silver. 

Elsewhere;  garnet,  variety  pyrope,  amethyst,  olivine, 
placer  gold. 

SAN  PETE  COUNTY. 

Gunnison;   halite  in  fine  cubes. 
Elsewhere;    coal,   gypsum,   iron   minerals. 

SEVIER  COUNTY. 

Fish  Lake;  common  opal. 

Foot  hills  north  of  Glenwood;  chalcedony  geodes.  sel- 
enite. 

Salina  Canon;  coal  with  yellow  hydrocarbon,  copalite, 
(?)  galena  in  sandstone. 

Elsewhere;  fullers  earth,  orpiment  in  clay,  opalized 
wood. 

SUMMIT    COUNTY. 

Bonanza  Flat;  green  garnet  (grossularite)  in  crystals 
and  massive. 

Coalville;  coal. 

Daly  Judge  Mine;   large  crystals  of  galena,  flnorite. 

Daly  West  Mine;  quart/,  crystals  with  sphalerite 
crystals. 

Other  Park  City  Mines;  anglesit?.  azurite.  cerussite, 
cerargyrite,  galena,  malachite,  sphalerite  occasionally 
phosphorescent,  pyrite.  tetrahedrite. 

Silver  King  Mine;  azurite.  cerussite,  galena,  malachite. 

Uintah;  anglesite.  argentite.  cerargyrite.  tetrahedrite. 
malachite. 

TOELLE  COUNTY. 

Brickyard  Mine  at  Mercur;  melanterite,  orpiment 
crystals  (and  foliaceous).  realgar  crystals,  sulphur. 

Clifton  District;  Gold  Hill  mines;  azurite.  bornite.  goU 
in  calcite,  garnet,  malachite.  Holstein  group;  copper 
minerals.  Albany  (ilrnup;  azurite.  ehalcopyrite.  chrysn- 
colla.  galena,  malachite.  Pole  Star  Croup;  azurite.  con- 
ichalcite,  cuprite,  malachite,  olivenite.  tetrahedrite.  py- 
rito.  Cyclone  Group;  wulfenite.  Troy  Group;  tel- 
lurium minerals. 

Deep  Creek  Region;  agates,  cerussite.  chalcedony,  ga- 
lena. 

Dry  Canon;  at  Kearsarge  Mine;  hessite.  At  Mono  Mine; 
azurite.  cerargyrite.  galena,  malachite,  coppper.  silver, 
stephanitc. 


Utah  Mineials  and  Localities. 


Dutch  Mountain;  augite,  azurite,  cerussite,  fluorite, 
galena,  malachite. 

Dugway;  barite  with  pink  and  white  'fluorite,  and 
pepper,  cerussite,  cerargyrite.  cuprite,  flnorite  of  varie- 
gated color  and  enclosing  galena,  magnetite,  silver,  wul- 
fenite  rarely  in  pyramidal  crystals.' 

Dugway  Range,  about  fifteen  miles  south  of  Dugway; 
bixbyite  on  topaz  and  rhyolite.  chalcedony  geodes.  garnet 
crystals  on  topaz  and  rhyolite.  altered  to  topaz,  etc, 
topaz  crystals  often  opaque  from  inclusions  of  quartz 
red  apatite  crystals  on  topaz  crystals. 

Geyser-Marion  Mine,  at  Merc'ur;  calcite.  cerargyrite, 
(Sparrow  Hawk  Claim),  cinnabar,  jarosite,  stibnite, 
varisclte. 

Golden  Gate  Mine,  Mercur;  arsenopyrite.  calcite,  cinna- 
bar, reaigar  with  orpiment. 

Granite  Mountain;    galena,  kaolimte. 

Hillside  Mine,  Mercur;   cinnabar,  orpiment.  sulphur. 

Johnsons  Pass;  salona.  Utah  onyx  of  greenish- and 
other  shades. 

Lion  Hill,  near  Ophir;  cerargyrite,  cerussite,  galena, 
utahite  rich  in  s,,ver. 

Mercur  Mine;  calcite  red  from  included  realgar,  cinna- 
bar, orpiment  crystals,  realgar  crystals,  selenite,  vans- 
cite. 

Midas  Mine;  gold  with  molybdenite   (?). 

Mineral  Hill;  cerussite,  copper  minerals,  galena. 

Ophir;  auiichalcite.  calcite.  cerussite.  cerargyrite.  chal- 
copyrite.  fluorite  with  dolomite  crystals,  malachite,  py- 
rite,  smithsonite  crystals,  tetrahedrite  crystals  with 
white  flurrite. 

Overland  Canon  near  Clifton;   bismuthinite   (?). 


anite. 

nnabar.  orpiment,  real- 


Pine  Canon  near  Tooele; 

Sacramento  Mine  at  Mercur, 
gar.  sulphur. 

Stockton;    cerussite.  galena,  p   rite. 
Sunshine;   cinnabar,  orpiment.  s 

Wild  Cat  Mountain;   fluorite      itli   silver,  prosopite. 

Elsewhere;  graphite. 

UINTAH  COUNTY. 

Ashley,  near:  cannel  coal,  asphaltum.  carnotite. 
Asphalt  Creek;    asphaltum. 
Bullionville  District;   copper  minerals. 
Fort  DuChesne,  near:   gilsonite. 
Ouray,  near:  gypsum. 

Elsewhere  and  on  Uncompahgre  Reservation;  gilsonite, 
ozocerite,  wurtzilite. 

UTAH  COUNTY. 

American  Fork  Canon;   cerussite.  galena,  molybdenite, 
pyrite,  tetradymite,  tetrahedrite. 

Clay  Canon,  near  Fairfield    variscite,  wardite. 


Utah  Minerals  and  Localities. 


Lakeside  Mts.;  chalcanthite.  iceland  spar,  large  pyrite 
crystals  altered  to  limonite  and  hematite.  Utah  Onyx. 

Mill  Fork  {station;  coal. 

Soldier  Summit,  and  near  Pleasant  Valley  Junction; 
ozocerite,  and  other  hydrocarbons. 

Springville,  mar;  Utah  onyx,  black  fossil  marble. 

Thistle  Junction,  :i  miles  east:  geodes  em-losing  li\ - 
drocarboiis  in  a  viscid  state. 

Elsewhere;   coal,  alabaster,  tschermigitc. 

WASATCH  COUNTY. 

Blue  Ledge  and  Snake  Creek;  cerussitc.  galena,  pyro- 
inorphite.  spalerite. 

Strawberry  Creek;   hydrocarbon  compounds. 

South  East  corner,  near  Smith's  Well;  gilsonitc. 

Wasatch  Range,  west  of  Midway;  green  garnet  (gr«;s- 
.sularite),  olive  green  zonal  muscovite,  showing  asterNm, 
phosphorescent  limestone,  copp;  r  minerals. 

WASHINGTON  COUNTY. 

Beaver  Dam  Mts;  realgar. 

Dixie  Mines;  aurichalcite,  a/.urite.  copper,  cuprite, 
timonite.  malachite. 

Silver  Reef;  in  sandstone,  argentite.  a/.urite.  autunite, 
cerargyrite,  malachite,  silver,  fossil  plants  and  trees  re- 
placed by  argentite,  coal,  copper  minerals,  cerargyrito 
and  silica. 

St.  George,  west  of  20  miles;  iron  minerals,  antimonial 
minerals. 

Virgin  River,  transparent  halite.      . 

Washington,   near;    carnotite. 

Elsewhere;   gvpsum. 

WAYNE  COUNTY. 

Fremont  River;    selenite   crystals   of    very    large   siw, 
occasionally   ;  nclosing  liijuids. 
Starvation  Creek;  coal. 
Elsewhere;    hematite,  gold. 

WEBER  COUNTY. 

Huntsville,  ten  miles  east;  pyrolusite. 
Ogden  Canon;    hornlih  nde.  limonite,  uraninitc. 
Elsewhere;    cerns-iic.  galena. 


The  following  minerals  have  been  variously  report- 
ed, but  need  continuation;  albandite,  arsenic,  arsenolite. 
atacamite,  barytocalcite.  boulangerite.  catseyc.  chal- 
cophanite.  chiolite.  cubanite.  embolite,  franklinite,  fries- 
lebenite.  hausmannite,  ilmenite,  iron  silicates,  magnesite. 
miargyrite.  ]ihenacite.  phosgenite,  polybasite.  pyrochro- 
ite.  ruby,  sapphire,  spinel,  strontianite.  witherite. 


Utah  Minerals  and  Localities. 


Notes   for    Collectors    of    Minerals. 

Tintic  District. — This  district  is  noted  for  its  fine 
specimens  of  the  rare  copper  arsenates,  as  well  as  for 
its  .meat  variety  of  mineral  species.  Pearceite  in  cry- 
-tals  has  hc'tn  one  of  the  rarest  noted,  and  the  speci- 
iiu  n-  seen  liave  been  most  remarkable  in  size,  the  larg- 
r>t  being  a  half  an  inch  or  more  across.  The  crystals 
arc  i,t'  tabular  habit, 'coated  with  a  bluish  substance, 
and  wer,  associated  with  small  brilliant  crystals  of  en- 
argite  ami  anglesite.  The  crystals  also  show  the  pe- 
culiar triangular  markings  noted  by  Prof.  S.  L.  Penfield 
in.  describing  pearceite  from  Montana.  Less  tlian  a  half 
do/.en  specimens  of  tliis  mineral  have  been  preserved. 
Xeiinerite  also  occiii's  with  exceeding  rarity,  the  crystals 
varying  in  coliii-  from  \ello\visli  to  a  deep  olive,  almost 
emerald  green.  I'hry  are  of  thin  tabular  habit,  the  larg- 
esl  being  less  than  one  fourth  of  an  inch  across.  Olive- 
nite  has  been  abundant  at  times,  but  the  red  tinted 
specimens  have  IK  en  quite  rare.  The  red  crystals  are 
usually  very  minute,  and  range  in  color  from  a  light 
reddish  brown  to  a  deep  blood  red.  They  afford  beauti- 
ful mounts  for  the  microscope,  and  are  usually  found 
densely  lining  small  cavities  in  a  hard  silicious  ore,  oc- 
casionally with  rnargite,  also  with  anglesite,  and  in- 
cluded in  the  latter  mineral.  White  olivenite  occurs 
sparingly  in  very  delicate  felted  bunches  of  capillary 
cry-taK  Seorodite  occurs  in  crystals  of  fine  quality, 
the  largest  nearlv  one  fourth  of  an  inch  in  size,  of  a, 
blui-h  green  color,  also  of  brown  tints.  Leadhillite  has 
been  observed  rarely,  but  the  crystals  seen  were  of 
good  quality,  nearly  colorless,  and  averaged  possibly 
mi. re  than  a  half  an  inch  across.  Anglesite  occurs  in  a 
gnat  variety  of  form,  and  its  crystalography  would  be 
veil  worth  careful  investigation.  Many  tine  translucent 
and  transparent  crystals  have  been  collected,  ranging  in 
color  from  colorless  and  white,  to  dark  grayish,  and  a  fine 
vellow.  Crystals  measuring  about  two  inches  in  length 
have  been  preserved  and  larger  specimens  have  been  re- 
ported. Cerussite  has  been  seen  rarely  in  beautiful  nearly 
transparent  twin  crystals.  .Cuprite  is  rarely  seen  crystal- 
i/.;d.  A  small  quantity  of  mimetite  was  found,  occurring 
in  very  delicate  white,  grayish  and  yellow,  long  slender 
hexagonal  crystals.  Brilliant  small  crystals  of  pnargite 
have  been  observed  at  the  mines  of  Eureka,  also  in  large 
crystals  of  dull  lustre  at  the  Homestake  Mine,  near 
Silver  City,  a'nd  of  smaller  size  at  the  mines  of  Mam- 
moth. Very  fine  crystali/.ations  of  this  mineral  have 
been  obtained  at  the  Commercial  Mine.  Bingham.  Mix- 
ite  has  been  collected  at  various  mines  of  th.e  Tintic 
District,  but  of  finest  quality  at  the  Carissa  Mine,  where 
it  t'requentlv  occurs  hi  minute  aoicular  crystals  forming 
'beautiful  pale  green  velvety  surt'acrs,  largely  in  a  barite 


Utah  Minerals  and  Localities. 


gangue.  Notable  crystals  of  brochantite  were  found  at 
the  Eureka  Hill  Mine,  the  largest  a  half  inch  or  more 
in  length,  and  of  the  wedge  habit.  No  other  locality 
has  furnished  such  crystals  of  this  mineral.  A  very  few 
remarkable  crystals  of  linarite  have  been  seen.  A  few 
specimens  of  Utahite  in  good  sized  crystals  have  been 
collected.  Pseudomorphs  in  great  variety  occur  in  the 
Tintic  mines. 

Topaz   Localities'. 

The  Thomas  Mountain  localities  are  situated  in  Juab 
County,  about  nine  miles  in  a  northerly  direction  from 
Drum  Springs,  in  the  Detroit  District,  or  about  55 
miles  in  a  northwesterly  direction  from  Desert.  The 
topaz  crystals  occur  in  cavities  and  seams  of  a  light 
gray  rhyolite,  a  great  belt  of  which  has  been  pushed 
up  for  20  miles  or  more  in  both  northerly  and  southerly 
directions  from  Thomas  Mountains.  The  loose  colorles 
crystals  are  found  on  the  hillsides,  and  in  the  sands  of 
the  dry  gulches,  where  they  glitter  in  countless  num- 
bers. The  sherry  colored  crystals  are  obtained  by  blast- 
ing the  richer  spots  in  the  rhyolite,  where  the  crystals 
are  found  attached  to  the  sides  of  the  cavities,  and 
frequently  loose  in  them,  with  a  soft  kaolin-like  ma- 
terial. These  colored  crystals  bleach  very  rapidly  on  ex- 
posure to  the  light,  and  particularly  when  exposed  to 
the  direct  rays  of  the  sun,  losing  nearly  all  color  in  a 
day.  The  writer  has  been  unable  to  find  any  explana- 
tion of  this  fact.  The  largest  topaz  crystals  have  been 
found  at  the  bixbyite  locality  in  the  Dugway  Range, 
about  15  miles  from  Thomas  Mountains,  and  ssvcra! 
miles  southerly  from  the  Dugway  grade.  Opaque  crys- 
tals of  much  larger  size  than  any  of  the  transparent 
kinds,  filled  with  quartz,  and  occasionally  with  black 
cubes  of  bixbyite  attached,  have  been  found  here  spar- 
ingly. The  curious  groups  of  opaque  gray  topaz  from 
Thomas  Mountains  are  of  exceedingly  rare  occurrence, 
in  perfection,  though  many  imperfect  specimens  are 
seen.  The  more  imperfect  crystals  of  the  gray  topaz 
appear  as  if  eroded  by  some  solvent.  These  topaz  lo- 
calities are  exceedingly  interesting  to  the  mineralogist, 
and  good  specimens  are  obtainable  at  any  time. 

Tiemannite  and  Onofrite. 

The  locality  near  Marysvale  lias  produced  tlir  only 
crystals  of  tiemannite  known,  and  many  fine  specimen* 
have  been  obtained,  the  largest  probably  hue  fourth 
of  an  inch  across.  They  are  generally  of  th?  tetrahedral 
habit  and  highly  modified.  No  crystals  of  onofrite  have 
been  reported.  These  minerals  occur  in  a  limestone 
gangue.  the  crystals  appearing  in  open  trains.  Crystal- 
ized  specimens  are  reported  unobtainable  now. 


Utah  Minerals  and  Localities. 


Orpiment  and  Realgar. 

Probably  the  finest  and  largest  known  crystals  of 
these  minerals  have  been  found  in  the  gold  mines  of 
Mercur,  mainly  in  the  Mercur,  Golden  Gate  and  Brick- 
yard mines.  Crystals  of  great  perfection  and  an  inch 
or  more  in  length,  have  been  collected  from  these  mines. 
The  discovery  of  perfect  crystals  of  orpiment  including 
many  of  twinned  habit,  enabled  the  classification  of  this 
mineral  in  its  proper  system  of  crystalization,  viz.:  in 
the  monoclinic  system,  the  crystals  hitherto  found  being 
so  imperfect  that  it  was  placed  in  the  orthorhombic 
system.  Groups  of  orpiment  crystals  occur  with  realgar 
crystals  rarely  among  them.  Beautiful  crystals  of  real- 
gar occur  with  crystals  of  calcite,  and  often  penetrating 
the  latter. 

Variscite. 

Variseite  in  large  nodules  associated  with  bluish  ward- 
ite,  has  been  one  of  the  notable  finds  in  Clay  Canon, 
near  Fairfield.  Large  specimens  of  fine  green  color, 
eight  inches  or  more  across,  have  been  mined,  which, 
sawed  into  sections  and  polished,  made  showy  speci- 
mens for  the  collection. 

Martite. 

The  largest  crystals  of  this  form  of  hematite  known 
have  been  collected  it  Twin  Peaks,  Millard  County. 
Octahedral  crystals,  showing  but  one  termination,  and 
five  inches  or  more  across,  have  been  collected.  Groups 
of  martite  crystals  are  also  sparingly  seen,  associated 
with  crystals  of  augite  and  apatite.  These  specimens 
were  collected  in  the  soil,  and  consequently  somewhat 
bruised,  but  smaller  crystals  are  found  in  place  in  the 
eruptive  rock  of  the  mountains. 

Rare  Minerals. 

Among  the  rare  minerals,  bixbyite,  luckite,  mallardite, 
wnrdite  and  utahite  have  not  been  reported  outside  of 
Utah.  A  mineral,  however,  giving  the  reactions  and 
having  the  appearance  of  utahite,  has  been  found  near 
Moreiici.  Arizona.  Zeunerite  is  exceedingly  rare  at  the 
mines  of  Tintic.  but  a  half  dozen  or  so  having  been  pre- 
served. It  is  possible  that  a  small  percentage  of  uranium 
vims  through  some  of  the  Tintic  ores.  About  two  dozen 
specimens  of  lettsomite  have  been  found,  while  chalco- 
phyllite  has  been  reported  in  but  one  or  two  specimens. 
Carnotite  occurs  in  sandstone,  near  Richardson,  also  S 
E  of  Emery,  Emery  Co.,  and  in  other  localities.  Uranin- 
ite  occurs  in  very  small  quantity  at  the  localities.  Du- 
frenoysite  and  binnite  are  probably  unobtainable  at 
present.  The  best  specimens  of  covellite  have  been  ob- 


Utah  Minerals  and  Localities. 


taincd  at  the  ( ).  K.  Mine,  but  the  mineral  5-  rather  fri- 
al>le.  Copper  ar-cnates.  similar  to  those  of  Tintic.  liave 
l;cen  found  at  mines  near  Clifton,  and  with  develop- 
ment of  the  prospects  there  interesting  linds  may  \»- 
mad'i .  Tlie  less  rare  molybdenite,  which  seems  to  be 
cMiiing  into  commercial  use.  has  been  found  in  several 
localities,  but  no  crystals  have  been  reported.  Utah 
has  been  and  \vi!l  continue  to  be  an  interesting  fu-ld  fur 
the  mineralogist,  and  it  is  to  be  regretted  that  no  in- 
>titution  e\i<ts.  as  in  some  neighboring  State-,  to  which 
the  mines  would  1«  obliged  to  furnish  good  specimens 
of  the  various  minerals  discovered,  for  preservation  in 
the  intere-ts  of  science. 


— 0 — 

DESCRIPTIVE    LIST    OF    MINERALS. 

Abbreviations    Jsed    in    the   Following    List: 

II.  hardness;  (J.  »ravitv;  S.  streak:  Comp..  compo-i- 
lion. 

Figur.s  given  for  composition  of  minerals  represent 
percentages,  and  are  taken  from  the  best  authorities. 
They  give  the  analy>c-  for  pure  minerals,  and  specific 
analyses  <,f  I  tali  species.  \vlure  obtainable. 

AGATE.     Variegated    chalcedony. 

ALABASTER.     Massive  granular  gypsum. 

ALMANDINE.     Iron-aluminium  garnet. 

AMETHYST.     Quart/,  colored  by  niangaiu-e. 

AMPHIBOLE.  II  :,'iblende.  Bisilicate  of  protoxide 
bases. 

ANDRADITE.     Calcium-iron    garnet. 

ANGLESITE.  Sulphate  of  lead.  II..  2.7.1-3:  <:.. 
(i.l2--(i..'I!l;  crlor.  white,  vellow  grayish,  greenish,  hlui-h. 
Comp..  ^iilphur  trioxide,  26.4;  lead'  oxide.  73.(i. 

APATITE.  Phosphate  of  calcium. ..  II.,  4.5-5;  G., 
3.17-3.23:  coir,  sea  green,  viol;  i  blue.  gray.  ll<  sh  red. 
bluish  green,  white,  yellow,  brown,  Cnmp..  approxi- 
mately ]iln '~|iliorHs  penfcxide.  41.0:  Mine.  .13.04:  fluorine. 
3.30.  with  thaeis  of  iron  and  alumina. 

ARAGONITE.  Carbonate  of  calcium.  II..  3..1--4:  G., 
2. 03-  -2.9.1;  color,  while,  gray,  velli.w.  ureen.  violet. 
Comp..  carbon  dioxide.  44:  lime.  .1(5. 

ARGENTITE.  Silver  sulphide.  II..  2--2..V.  G.,  7.20-- 
7.3(5;  col;:r  and  S..  blackish  lead  gray,  -treak  -Inning. 
O  mi'.,  sulphur.  12.0:  -ilver.  S7.1. 

AR3ENOPYRITE.  Sulph-arsei-ide  of  ir.;ii.  ELr5-5.6; 
(.'..  .1.9--0..1;  color,  silver  white  to  -t'-el  gray:  S..  grayi-b 
black.  Comp..  sulphur.  10.7:  arsenic.  46;  iron,  34.3. 

ASPHALTUM.  Mineral  pitch:  a  mixture  .,f  hydro- 
carbons. 


Utah  Minerals  and  Localities.  15 

AUGITE.  Aluminous  variety  of  pyroxene.  H.,  about 
li;  (i.,  about  3.30;  color,  green,  yellow,  black.  Utah 
mineral  black.  Comp.,  approximately  silica.  47;  alum- 
ina, 10;  magnesia,  1(5;  lime,  19;  iron  Oxides.  8. 

AURICHALCITE.  Hydrous  carbonate  of  copper  and 
/inc.  H.,  2;  G..  3.64—3.64;  color,  pale  green,  verdigris 
green,  to  sky  blue.  S..  pale  greenish  or  bluish.  Comp., 
carbon  dioxide.  10.1;  zinc  oxide.  53.2:  cupric  oxide.  20.8; 
water.  9.9. 

AUTUNITE.  Hydrous  phosphate  of  uranium  and  cal- 
cium. II..  2--2.5;  G.,  3.5--3.1J);  color,  lemon  yellow  to 
sulphur  yellow.  S.,  yellowish.  Comp.,  phosphorus  pent- 
oxide.  15.5;  uranium  trioxide.  02.7;  lime,  0.1;  water.  15.7. 

AZURITE.  Hydrous  carbonate  of  copper.  H..  3.5--4; 
<;.,  3.77--3.83;  color,  azure  blue.  Comp..  carbon  dioxide. 
25.0;  cupric  oxide.  09.2;  water,  5.2. 

BARITE.  Sulphate  of  barium.  H.,  2.5--3:  (',..  4.3-- 
4.0;  color,  white,  yellow,  gray,  blue  red.  brown;  S., 
white.  Com]).,  sulphur  trioxide.  34.3;  baryta.  05.7. 

BISMITE.  Bismuth  trioxide.  G..  4.30;  color,  green- 
ish, yellow,  straw  yellow,  grayish  white.  Comp..  oxy- 
gen, 10.4;  bismuth,  "89.0. 

BISMUTHINITE.  Bismuth  sulphide.  H..  2;  G..  0.4-- 
0.5;  S.  and  color.  Lead  gray  to  tin  white.  Comp.,  sul- 
phur. 18;  bismuth.  81.2. 

BISMUTITE.  Basic  bismuth  carbonate.  H..  4--4.»; 
G.,  G.80--0.90;  color,  white,  mountain  green,  siskin  green, 
straw  yellow',  yellowish  gray;  S.,  greenish  gray  to  color- 
less. Comp.,  carbon  dioxide.  0.50;  bismuth  trioxide.  90; 
water.  3.44. 

BINNITE.  Sulph-arsenide  -of  copper.  H..  2.5--3;  (!., 
4.47;  color,  steel  gray  to  iron  black,  som:  times  brown- 
ish; S.,  reddish  brown.  Comp..  sulphur,  29.8;  arsenic, 
31 :  copper.  39.2. 

BIXBYITE.  Oxide  of  iron  and  manganese.  H..  0--G.5; 
<;..  4.94;  color,  brilliant  black.  Comp..  iron  pent  oxide. 
47.98;  manganese  oxide.  42.05;  cxygen.  4.38;  alumina. 
2.53.  with  small  quantities  of  silica  and  titanium. 

BORICKITE.  Hydrous  phosphate  of  iron  and  cal- 
cium. H..  3.5;  (i., '2.0--2.7;  S.  and  color,  reddish  brown. 
Com]).,  phosphorus  pentoxide.  20.49;  iron  trioxide,  52.29; 
lime.  8.0;  water,  19.00.  , 

BORNITE.  Sulphide  of  copper  and  iron.  H..  3;  G., 
4.9--5.4;  color,  between  copper  red  and  pinchbeck  brown; 
S..  pale  grayish  black.  Com]).,  sulphur.  28.1  ;  c:ipper. 
55.5;  iron'.  10.4. 

BROCHANTITE.  Hydrous  sulphate  of  copper.  II., 
3.5--;  G.,  3.9;  color,  emerald  green  to  blackish  green: 
S..  green,  paler  than  color.  Comp..  Utah  mineral,  eupric 
oxide.  08.7:  water.  12.44:  sulphur  trioxide.  undeter- 
mined. 

BUSHMANITE.  Hydrous  sulphate  of  aluminium, 
manganese  and  magnesium.  H.,  1.5;  G.,  1.78;  color. 


16  Utah  Minerals  and  Localities. 

white  with  tints  of  rose,  green  and  yellow.  Goinp., 
I'tali  mineral,  sulphur  trioxide,  35.85;  alumina,  10.40; 
nangane.se  oxide,  2.12;  oxide  of  magnesium,  5.94;  water. 
40  with  traces  of  iron  and  potassium. 

CALCITE.  Calcium  carbonate.  H.,  3;  G.,  2.71;  color, 
white  and  various  pale  shades  of  gray,  red,  green,  blue, 
yellow,  violet,  also  brown  and  black  when  impure, 
(imp.,  carbon  dioxide,  44;  lime,  56. 

CALEDONITE.  Sulphate  of  lead  and  copper.  11.. 
2.5-3;  G.,  6.4;  color,  deep  verdigris-green  or' bluish-green. 
S.,  greenish  white.  Comp..  sulphur  trioxide,  17.!>:  lead 
protoxide.  06.3;  .-upric  oxide,  11.8;  water,  4.0. 

CANNEL  COAL.  Variety  of  bituminous  coal;  dull 
black  or  grayish  black,  and  on  distillation  affording  40 
to  00  per  cent,  volatile  matter',  including  a  large  pn.- 
portion  of  oil. 

CARNOTITE.  A  hydous  compound  of  uranium,  po- 
tassium  and  vanadium.  A  yellowish  crystalline  powder 
occurring  mixed  with  quartzose  sand.  Color,  yellow. 
Comp.,  vanadium  pentoxide,  20.12;  uranium  trioxide. 
(54.70;  potassium  oxide,  10.37;  water,  5.1!);  approximate- 
ly, with  trace  of  iron. 

CARNELIAN.     Red  chalcedony. 

CALAMINE.  Hydrous  silicate  of  zinc.  H..  4.5--5;  0.. 
3.40--3\,50;  color,  white,  greenish,  bluish,  yellow  to 
brown;  S..  white.  Comp.,  silica.  25;  zinc  oxide.  (i7.r>; 
water,  7.5. 

CERARGYRITE.  Chloride  of  silver.  II.,  1--1.5:  G.. 
5.55:  cohir.  pearl  gray,  grayish  green,  whitish  to  color- 
less, rarely  violet  blue.  Comp. .chlorine,  24.7;  silver. 
75.3. 

CERVANTITE.  Binoxide  of  antimony.  11..  4.5:  G., 
4.08;  color,  sulphur  yellow.  Isabella  yellow  to  nearly 
whit?  or  reddish  white;  S..  yellow  to  white.  Comp. 
oxygen.  21.1;  antimony.  78.!). 

CERUSSITE.  Carbonate  of  lead.  II..  3--3.5:  <;..  0.40 
--6.57;  color,  white,  gray  grayish  black,  sometimes  blue 
or  green  from  copper.  Com]).,  carbon  dioxide.  16.5;  lead 
oxide.  83.5. 

CHALCOCITE.  Cupreous  sulphide.  H..  2.5- 
5.8;  color  and  S..  blackish  lead  gray.  Comp 
^0.2;  copper.  70.8. 

CHALCOPYRITE.  Sulphide  of  copper  and  iron.  II.. 
3.5--4;  G...4.1--4.3;  color,  brass  yellow,  of t:  n  tarnished 
or  irridescent;  S..  greenish  black.  Comp..  sulphur.  35; 
copper.  34.4;  iron,  30.5. 

CHALCOPHYLLITE.  Basic  arsenate  of  copper.  II.. 
2;  G..  2.4--2.(i;  color,  emerald  green  or  grass  green  to 
verdigris  green:  S..  paler  than  color.  Com]).,  approxi- 
mately arsenic  pentoxide.  18;  cupric  oxide.  50;  water.  32. 

CHENEVIXITE.  Arsenate  of  copper  and  iron.  II.. 
3.5--4;  G..  3.93;  color,  mountain  green,  bluish  green  to 
greenish  yellow:  S..  yellowish  green.  Comp.,  arsenic 


Utah  Minerals  and  Localities. 


pentoxide,  38.2;  cupric  oxide,  26.3;  iron  sesquioxide,  26.5; 
wati-r.  9. 

CHRYSOCOLLA.  Hydrous  silicate  of  copper.  H.,  2- 
4;  G.,  2-2.38;  color,  mountain  green,  bluish  green,  pass- 
ing into  sky  blue  and  turquoise  blue,  brown  to  black 
when  impure.  S.,  when  pure,  white.  Comp.,  silica,  34.3; 
copper  oxide.  45.2;  water.  20.5. 

CHALCOTRICHITE.     Capillary  cuprite. 

CHALCEDONY.  Cryptocrystaline  quartz.  H.,  7;  G., 
2.6--2.l>4;  color,  white,  gravish,  pale  to  dark  brown, 
bluish. 

CHALCANTHITE.  Hydrous  sulphate  of  copper.  H., 
2.5;  G.,  2.12- -2.30;  color*  berlin  blue  to  sky  blue,  some- 
times green;  S.,  uncolored.  Comp..  sulphur  trioxide, 
32.1;  cupric  oxide,  31.8;  water,  36.1. 

CINNABAR.  Sulphide  of  mercury.  H.,  2-2.5;  G., 
8-8.2;  color,  cochineal  red,  inclined  to  brownish  red  and 
lead  gray;  S.,  scarlet.  Comp.,  sulphur,  13.8;  mercury, 
86.2. 

CLINOCLASITE.  Hydrous  arsenate  of  copper.  H., 
2.5-3;  G.,  of  Utah  mineral,  4.36-4.38;  color,  blackish 
blue  green,  internally  dark  verdigris  green;  S.,  bluish 
green.  Comp..  arsenic  pentoxide.  29.59;  cupric  oxide, 
(12.44;  water.  7.72.  with  traces  of  zinc,  iron,  •etc. 

CONICHALCITE.  Hydrous  arsenate  of  copper  and 
calcium.  H.,  4.5;  G.,  4.12;  color,  pistachio  green,  inclined 
to  emerald  green;  S.,  same  as  color.  Comp.,  Utah  min- 
eral, arsenic  pentoxide,  39.94;  cupric  oxide,  28.68;  lime 
19.79:  \\atfr.  5.52;  zinc  oxide,  2.86,  with  traces  of  silver, 
iron.  etc. 

COPALITE.  An  oxygenated  hydrocarbon.  G.,  1.01-- 
1.05;  color,  pale  clear  yellow  to  dirty  gray  and  dirty 
brown.  Conrp.,  approximately,  carbon,  85.7;  hydrogen, 
11.47;  oxygen.  2.84. 

COPPER.     Metallic  or  native  copper. 

COVELLITE.  Cupric  sulphide.  H..  1.5--2;  G.,  4.5-4.6; 
color,  indigo  blue  or  darker;  S..  lead  gray-  to  black, 
shining.  Comp..  sulphur.  33.6;  copper.  06.4. 

CORUNDUM.  Oxide  of  aluminium.  H.,  9;  G.,  3:95-- 
4.10;  color,  blue,  red,  yellow,  brown,  gray,  to  smoky 
white  and  colorless.  Comp.,  oxygen,  47.1 ;  aluminium, 
52.0. 

CUPRITE.  Cupreous  oxide.  H.,  3.5-4;  G..  5.85-6.15; 
color,  red  of  various  shades,  particularly  cochineal  red, 
sometimes  almost  black,  occasionally  crimson  red  by 
transmitted  liirht;  S.,  several  shades  of  brownish  red. 
shining.  Comp..  oxygen,  11.2;  copper,  88.8. 

DOLOlVuTE.  Carbonate  of  calcium  and  magnesium. 
H..  3.5-4:  G..  2.8-2.9;  color,  white,  reddish  or  greenish 
white,  rose  red.  green,  brown,  gray  and  black.  Comp.. 
carbon  dioxide.  47.8:  lime.  30.4;  magnesia,  21.7. 

DUFRENOYSITE.     Sulph-arsenate    of    lead.      H.,    3; 


i8  Utah  Minerals  and  Localities. 


G.,  5.55- -5.57;  color,  blackish  lead  gray;  S.,  reddish 
brown.  Comp.,  sulphur.  22.2;  arsenic,  20.7;  lead,  57.1. 

ENARGITE.  Sulph -arsenide  of  copper.  H.,  3;  G., 
4.43--4.4S;  color,  grayish  black  to  iron  black;  S.,  grayish 
black.  Comp.,  sulphur,  32.6;  arsenic,  19.1;  copper,  48.3. 

EPODITE.  Silicate  of  iron,  alumina  and  calcium. 
H..  6--7;  G.,  3.2S--3.6;  color,  pistachio  green,  yellowish 
green  to  brownish  green,  greenish  black,  black,  clear 
red  and  yellow,  gray,  white,  colorless  rarely.  Comp., 
approximately,  silica,  39;  alumina,  25;  iron  oxide,  25; 
lime,  24;  water.  2. 

EPSOMITE.  Hydrous  magnesium  sulphate.  H..  2.5; 
G.,  1.75;  color  and  S..  white.  Comp.,  sulphur  trioxide, 
32.5;  magnesium.  16.3;  water,  51.2. 

ERINITE.  Hydrous  arsenate  of  copper.  H..  4:5--5; 
G.,  4.04;  color,  emerald  green,  inclining  to  grass  green; 
S.,  green,  paler  than  color.  Comp.,  Utah  mineral,  ar- 
senic pentoxide,  32.07;  cupric  oxide.  5(5.56;  water.  6.8(5. 
with  small  quantities  of  iron,  calcium,  etc. 

FLUORITE.  Fluoride  of  calcium.  H..  4;  G..  3.1S: 
color,  white,  yellow,  green,  rose,  and  crimson  red,  violet 
and  sky  blue,  brown,  wine  yellow,  greenish  blue,  violet 
blue  common,  rarely  red;  S..  white.  Comp..  fluorine. 
48.9;  calcium,  51.1. 

GALENA.  Sulphide  of  lead.  H..  2.5- -2.75;  G..  7.4- -7.6; 
color  and  S.,  lead  gray.  Comp..  sulphur.  13.84;  lead,  86.6. 

GILSONITE.  Hydrocarbon  compound.  H..  2--2.5;  G., 
1.06--1.07;  color,  brilliant  black;  S..  rich  brown.  Brittle. 

GLAUBERITE.  Sulphate  of  lime  and  soda  H..  2.5--3J 
-G.,  2.7--2.8S;  color,  pale  yellow  or  gray,  sometimes  brick 
red.  Comp..  sulphur  trioxide,  57.6;  lime.  20.1;  soda.  22.3. 

GOLD.     Native  gold. 

GOSLARITE.  Hydrous  sulphate  of  zinc.  H..  2.5-3: 
G.,  1.9-2.1;  color,  white,  reddish,  bluish,  yellowish, 
Comp.,  sulphur  trioxide.  27.9;  zinc  oxide.  28.2;  water. 
43.9. 

GRAPHITE.  Carbon,  often  impure  from  mixture  of 
clay,  iron,  etc.  H.,  1--2;  C...  2.09--2.23;  color,  iron  black 
to  steel  gray. 

GROSSULARITE... Calcium-aluminium  garnet.  H. 
6.5--7.S;  G.,  3.55--3.66;  color,  white,  pale  green,  amber 
and  honey  yellow,  wine  yellow,  brownish  yellow,  cinna- 
mon brown,  pale  rose  red.  rarely,  emerald  green  from 
presence  of  chromium.  Comp..  silica.  40;  alumina.  22.7: 
lime.  37.3. 

GUMMITE.  Altered  uraninite  of  doubtful  composi- 
tion. H..  2.5--3;  <;..  3.9--4.20;  color,  reddish  yellow  to 
orange  or  hyacinth  red.  reddish  brown;  S..  yHlmv.  Con- 
tains a  larse  percentage  of  uranium  trioxide. 

GYPSUM.  Hydrous  sulphate  of  calcium.  TI..  l.:>--2: 
G..  2.31--2.32;  color,  usually  white,  sometimes  gray,  llc-h 
red.  honey  yellow,  ochre  yellow,  blue,  impure  variitic- 


Utah  Minerals  and  Localities.  19 

often  black,  brown,  red  or  reddish  brown;  S.,  white. 
Comp..  sulphur  trioxide,  46.6;t  lime,  32.2;  water,  20.9. 

HALITE.  Rock  salt.  Chloride  of  sodium.  H.,  2.5; 
G.,  2.1--2.6;  color,  white,  reddish,  bluish,  purplish.  Comp., 
chlorine,  39.4;  sodium,  60.6. 

HEMATITE.  Iron  sesquoxide.  H.,  5.5--6.S;  G.,  4.9-- 
5.3;  color,  dark  steel  gray  or  iron  black,  when  earthy, 
red;  S..  cherry  red  or  reddish  brown.  Comp.,  oxygen, 
30;  iron,  70. 

HESSITE.  Telluride  of  silver.  H.,  2.5-3;  G.,  8.31 -- 
8.89;  color,  between  lead  gray  and  steel  gray.  Comp.. 
tellurium.  36.7;  silver,  63.3. 

HYALITE.  Variety  of  opal.  Color,  clear  colorless, 
brownish  or  reddish.  See  opal. 

ICELAND  SPAR.  Transparent,  doubly  refracting  cal- 
cite. 

JAROSITE.  Hydrous  sulphate  of  iron  and  potassium. 
H..  2.5--3;  G..  Utah  mineral,  3.16;  color,  yellow,  yellow- 
ish brown,  clove  brown,  to  nearly  black;  S.,  yellow, 
shining.  Comp..  Utah  mineral,  sulphur  trioxide.  28.93; 
iron  >,  squioxide,  51.16;  potassium.  9.5;  water,  10.24. 

JASPER.  Quartz  colored  with  iron  oxides.  H.,  7; 
G.,  2.60;  color,  red,  brown,  gray,  yellow,  blackish,  green, 
or  banded  in.  various  colors. 

KAOLINITE.  Hydrous  silicate  of  aluminium.  H.. 
2- -2.o:  G..  2.6--2.G3;  color,  white,  grayish  white,  yellow- 
ish, sometimes  bluisn  or  reddish.  Comp..  silica,  46.5; 
alumina.  39.5;  water,  14. 

LEADHILITE.  Sulpho-carbonate  of  lead.  H.,  2.5; 
G.,  6.26--6.44;  color,  white,  yellow,  gray,  greenish;  S., 
uncolored.  Comp.,  sulphur  trioxide.  7.4;  carbon  dioxide, 
S.2:  had  oxide,  82.7;  water.  1.7. 

LETTSOMITE.  Hydrous  sulphate  of  copper  and 
aluminium.  Color,  clear  smalt  blue,  passing  into  sky 
blue.  C'omp..  Utah  mineral,  sulphur  trioxide,  12.60; 
alumina.  15.45;  cupric  oxide,  49.54;  water,  21.50,  with  a 
little  iron. 

LIMONITE.  Hydrous  sesquioxide  of  iron.  H..  5-5.5; 
G..  (i.3--(i.4.  coin-  of  fracture,  various  shades  of  brown, 
commonly  dark  when  earthy,  brownish  yellow,  ochre 
yellow;  S..  yellowish  brown.  Comp..  oxygen,  25.7;  iron, 
59.8;  water'l4.5. 

LINARITE.  Hydrous  sulphate  of  copper  and  lead, 
II..  2.5:  G..  5.5-5.45:  color,  deep  azure  blue;  8..  pale 
blue.  Comp..  sulphur  trioxide.  20;  lead  oxide,  55.7; 
eupric  oxide.  19.8;  water.  4.5. 

LODESTONE.  Magnetite,  highly  magnetic,  or  exhib- 
iting polarity. 

LUCKITE.  Variety  of  melanterite.  Comp..  sulphur. 
trioxide.  20.3;  iron  protoxide.  21.7;  manganese  oxide, 
1.9:  water.  42.2.  with  small  quantities  of  magnesium, 
calcium,  etc. 

MAGNETITE.     Sesquioxide  and  protoxide  of  iron.  H., 


Utah  Minerals  and  Localities. 


5.5--G.5;    G.,    5.16--5.18;     color,     iron     black;    S.,    black. 
Coinp.,  oxygen,  27.6;    iron,  72.4. 

MALACHITE.  Hydrous  carbonate  of  copper.  H..  3.5 
--4;  G..  3.0--4.3;  coloV,  bright  green;  S.,  paler  than  color. 
Comp.,  carbon  dioxide,  10.9;  cupric  oxide,  71.9;  water,  8.2. 

MALLARDITE.  Hydrous  sulphate  of  manganese. 
Colorless.  Comp.,  sulphur  trioxide,  28.9;  manganese 
protoxide.  25.6;  water,  45.5. 

MANGANITE.  Hydrous  manganese  oxide.  H.,  4;  G., 
2- -4.44.  Color,  dark  steel  gray  to  iron  black.  S.,  red-' 
dish  brown  to  nearly  black.  Comp..  o.xyg.  n  27.3.  man- 
ganese 62.4,  water  10.3. 

MARTITE.  Iron  sesquioxide  in  octahedral  form,  sup- 
posed to  be  pseudomorphous  after  magnetite  or  pyrite. 

MELACONITE.  Black  cupric  oxide.  H.,  3-4 ; '«..  r,.S2 
--6.25;  color,  steel  or  iron  gray  in  scales;  wh.n  earthy 
black  or  grayish  black,  and  ordinarily  soiling  the  fingers 
when  massive  or  pulverulent.  Comp..  oxygen.  2||.2: 
copper,  79.8. 

MELANTERITE.  Hydrous  ferrqiM  sulphate.  II..  2; 
G..  1.89--1.90;  color,  various  shades  of- green  to  white. 
Com]).,  sulphur  trioxide,  28.8;  iron  protoxide,  25.9; 
water.  45.3. 

MIMETITE.  Chlor-arsfnate  of  lead.  H..  3..>:  <:..  7-- 
7.25;  color,  pale  yellow  to  brown;  color  Utah  mineral, 
white,  colorless,  pale  yellow  to  orange  yellow;  S.,  white 
or  marly  so.  Comp..  arsenic  pentoxide.  2:5/2:  lead  prot- 
oxide.  74.9;  chlorine.  2.-1. 

MINIUM.  Oxide  of  lead.  H..  2--3:  G..  4.(i:  COlQT, 
vivid  red  mixed  with  yellow:  S..  orange  yellow.  Comp.. 
oxygen,  9.4;  lead.  90.6. 

MIRABILITE.  Hydrous  -...dinni  -ulphate.  11..  1.5--2: 
G..  1.481;  color,  white.  C  nip.,  sulphur  trioxide.  24. s; 
M>da.  19.3:  water.  55.9. 

MIXITE.  1  Iv,lrou>  ar-enate  of  copper  and  bismuth. 
H.,  3--4;  G.,  3.79;  color,  emerald  green  to  bluish  green. 

fale    green    or    whitish;    S.,    lighter    than    color.     Comp.. 
"tali    mineral,    arsenic    pentoxide.    28.79;    bismuth    tri- 
oxide,  11.18;    cupric  oxide,  43.89:    /.inc   oxide.   2.7(1.    \\.th 
traces   of  iron,  calcium,   prospliortis   ami  silica; 

MOLYBDENITE.     Molybdenum      disulphide.     H..      1 
1.5;    G.,  4.7--4.8;    color,  pure  lead  gray:    S..   bluish   grav 
on    paper;    on    porcelain,   slightly    greenish.     Com])..    s\il- 
phur.  40;  molybdenum,  GO. 

MOLYBITE.     Oxide   of   molybdenum. 
49--4.50.     Color,   straw   yellow,   yellowish 
Oxygen    33.3.   molybdenum    till. 7. 
MONAZITE.     Phosphate  of  cerium  mine; 
(i..  4.9--5.3.     Color,  hyacinth  red.  clove  In 
vellowish   lirown. 

MOSS  AGATE.  (  naleedony  filled  with  dendritic  or 
moss-like  forms  of  manganese  or  magnetite. 

MUSCOVITE.     :\iainlv  an   orthosilieaie  of  nluminium 


Utah  Minerals  and  Localities. 


and  potassium.  H.,  2—2.5;  G.,  2.76-3;  color,  gray, 
brown,  hair  brown,  pale  green,  violet,  yellow,  dark  olive 
green,  colorless,  rarely  rose  red;  S.,  uncolored.  Comp., 
>inca.  45.2;  alumina,  38.5;  potash,  11.8;  water,  4.5. 

OBSIDIAN.  Volcanic  "lass.  Comp..  silica,  usually 
microlitic. 

OLIVENITE.  Hydrous  arsenate  of  copper.  H.,  3;  G., 
4.1 --4.4;  col;;r,  various  shades  of  olive  green  passing  into 
lock,  >iskin.  pistachio,  and  blackish  green,  liver  and 
Wood  brown,  straw  yellow,  grayish  white,  white,  va- 
rious shades  of  red;  S..  olive  green  to  brown.  Comp., 
l.'tah  variety  (wood  copper),  arsenic  pent  oxide,  40.5; 
cupric  oxide,  55.40;  water,  3.39. 

OLIVINE.  Silicate  of  magnesium  and  iron.  H..  6.5- 
7;  G..  3.27-3.57 ;  color,  olive  green,  sometimes  brownish, 
grayish  red.  grayish  green;  S.,  uncolored,  rarely  yellow- 
ish. Com]).,  approximately,  silica,  42.30;  magnesia. 
51.40:  iron  oxide.  5.1;  with  traces  of  alumina,  calcium, 
etc. 

ONOFRITE.  Sulpho-selenidc  of  mercury.  H.,  2.5; 
G.,  7.98--8.09;  color  and  S.,  blackish  lead  gray.  Comp., 
rtah  mineral,  sulphur,  11.68;  selenium.  4.58:  mercury, 
81.93;  with  traces  of  zinc  and  manganese. 

OPAL.  Hydrous  silica.  H.,  5.5-0;  G.,  1.9-2.3;  when 
pure.  G..  2.1 --2.2;  Utah  mineral  mostly  the  ordinary 
milky  opal,  without  fire. 

ORPIMENT.  Arsenic  trisulphide.  H.,  1.5-2;  G.,  3.4- 
3.5;  color,  lemon  yellow  of  various  shades;  S.,  paler 
than  color.  Como.,  sulphur.  39;  arsenic,  til. 
.  .  ORTHOCLASE.  Silicate  of  aluminium  and  potassium. 
H..  6;  G.,  2.57;  color,  white,  pale  yellow,  flesh  red.  gray, 
rarely  green,  colorless,  S.,  uncolored.  Comp.,  silica. 
<i4.7;'  alumina.  18.4;  potash.  16.9. 

OZOCERITE.  Hydrocarbon.  G..  Utah  mineral.  0.971 ; 
color.  Utah  minon.l.  black,  greenish  black,  waxy.  Comp.. 
carbon.  85.44:  livdrugen.  14.45. 

PHARMACOSIDERITE.  Hydrous  arscnate  of  iron. 
11..  2.5;  G..  2.9-3;  color,  olive  green,  blackish  green, 
honey  yellow  to  yellowish  brown,  grass  green,  hyacinth 
red,  emerald  green;  S..  green  to  brown,  pale  yellow. 
Comp..  arsenic  pentoxide,  43.1;  iron  sesquioxide,  40; 
water.  16.9. 

PEARCEITE.  Sulph-arsenite  of  silver.  H..  3;  G., 
6.15:  color  and  S.,  black.  Utah  crystals  generally 
bluish  externally.  Comp..  approximately,  sulphur.  17.71; 
arsenic.  7.39:  silver.  55.17:  copper.  18.11.  with  traces 
of  iron,  etc. 

PITTISCITE.  Hydrous  arsenate  and  sulphate  of  fer- 
ric iron,  of  doubtful  formula.  H.,  2-3;  G.,  2.2-2.5; 
color,  yellowish  to  reddish  brown,  blood  red.  white.  S., 
yellow  to  white.  Oomp.,  Utah  mineral,  arsenic  pent- 
oxide.  39.65;  sulphur  trioxide.  1.14;  iron  sesquioxide. 
33.89;  cupric  oxide.  1.17:  >ilica.  1.92:  insoluble.  4.08. 


Utah  Minerals  and  Localities. 


PROSOPITE.  Hydrous  fluoride  of  aluminium  and  cal- 
cium. H.,  4.5;  G.,  2.88-2.89;  color,  white,  grayish,  color- 
less. Utah  mineral,  bluish  white  to  turquoise  blue. 
Comp.,  Utah  mineral,  fluorine,  29.95;  calcium,  16.85; 
aluminium,  22.74;  wateTr,  16.12;  oxygen,  14.34. 

PROUSTITE.  Sulph-arsenide  of  silver.  H.,  2-2.5; 
G.,  5.57- -5.64;  color,  scarlet  vermilion;  S.,  like  color, 
inclined  to  red.  Comp.,  sulphur,  19.4;  arsenic,  15.2;  sil- 
ver, 65.4. 

PRASE.     Dull  leek  green  quartz. 

PYRARGYRITE.  Sulph-antimonide  of  silver.  H., 
2.5;  G.,  5.57--5.S6;  color,  dark  red  or  black  to  grayish 
black,  by  transmitted  light  deep  red;  S.,  purplish  red. 
Comp.,  sulphur,  17.8;  antimony,  22.3;  silver,  59.9. 

PYRITE.  Iron  di-sulphide. '  H.,  6-6.5;  G.,  4,95-5.10; 
color,  pale  brass  yellow;  S.,  greenish  black  or  brownish 
black.  Comp..  sulphur,  53.4;  iron,  46.6. 

PYROLUSITE.  Manganese  dioxide.  H.,  2-2.5;  G., 
4.69-4.86;  color,  iron  black,  dark  steel  gray,  some- 
times bluish;  S.,  black  or  bluish  black,  sometimes  sub- 
metallic.  Oomp.,  manganese  oxide,  79.14;  oxygen,  17.27; 
water,  2.33,  with  traces  of  calcium,  etc. 

PYROMORPHITE.  Phosphate  and  chloride  of  lead. 
H..  3.5-4;  G.,  6.5-7.1;  color,  green,  yellow,  brown,  gray- 
ish white,  white,  wax  yellow,  orange  yellow;  S..  white, 
sometimes  yellowish.  Comp..  phosphorus  pentoxide,  15.7; 
lead  protox'ide.  82.2;  chlorine.  2.6. 

PYROPE.  Magnesia  alumina  garnet.  H..  7-7.5:  <;.. 
3.70--3.75;  color,  deep  red  to  nearly  black,  orange  brown, 
purplish  red.  Comp..  silica.  44.8;  alumina.  25.4;  mag- 
nesia, 29.8. 

QUARTZ.  Silicon  dioxide.  H..  7:  G..  2.00-2.65;  color- 
less when  pure,  often  various  shade-*  of  yellow,  red. 
brown,  green,  blue,  black:  S..  white  when  pure;  if  im- 
pure, often  of  same  color,  but  paler.  Comp..  oxvg.  n. 
53.3;  silicon.  46.7. 

REALGAR.  Arsenic  mono-sulphide.  H..  1.5-2:  (i., 
3.556;  color,  aurora  red  to  orange  yellow:  S..  orange  red 
to  aurora  red.  Com)).,  sulphur.  29. 9:  arsenic.  70.1. 

RHODOCHROS1TE.  Manganese  protocarbonate.  II.. 
3.5-4;  G.,  3.45-3.60  and  higher;  color,  various  shades 
of  rose  red,  yellowish  gray,  fawn  colored,  dark  red, 
brown;  S.,  white.  Comp.,  carbon  dioxide,  38.3;  manga- 
nese protoxide,  61.7;  iron  carbonate  frequently  present, 
and  carbonates  of  calcium,  magnesium,  zinc,  and  rarely 
cobalt." 

SATIN  SPAR.  Finely  fibrous  variety  of  gypsum,  with 
pearly  opalescem*?. 

SCORODITE.  Hydrous  ferric  arsenate.  H..  3.5-4: 
G..  3.1--3.3;  color,  pale  leek  green  or  liver  brown:  S.. 
white.  Comp..  arsenic  pcntnxide.  4!).S;  iron  sesquioxide. 
34.6;  water.  15.6. 

SELENITE.     Crvstali/nl    -\  p-uin 

SILVER.     Xativi.  silver. 


Utah  Minerals  and  Localities.  23 

SMITHSONITE.  Carbonate  of  zinc.  H.,  5;  G..  4.30- - 
4.45;  color,  white,  grayish,  greenish,  brownish,  some- 
times brown,  green,  blue  green  or  yellow;  S..  white. 
Comp..  carbon  dioxide.  35.2;  zinc  protoxide,  (54.8. 
.  .SPHALERITE.  Sulphide  of  zinc.  H..  3.5--4;  G., 
3.9--4.1;  color,  yellow,  brown,  black,  red,  green  to  white, 
when  pure,  nearly  colorless;  S.,  brownish  to  light  yellow, 
and  white.  Comp..  sulphur,  33;  zinc.  67. 

STIBNITE.  Sulphide  of  antimony.  H..  2;  G.,  4.52-- 
4.(>~2:  color  and  S.,  lead  gray,  inclined  to  sieel  gray. 
Comp. ..sulphur,  28.G;  antimony,  71.4. 

STEPHANITE.  Sulph-antimonate  of  silver.  H.,  2- 
2.o;  (i..  6.2--G.3;  color  and  S.,  iron  black.  Comp..  sulphur 
10.3;  antimony.  15.2;  silver.  68.5. 

SPHERULITES.  Globular  concretions  consisting  of 
orthoclase  of  a  light  gray  color,  and  in  the  Utah  obsi- 
dian having  a  radiating  fibrous  structure. 

TETRADYMITE.  Telluride  of  bismuth.  H.,  1.5--2; 
(i..  7.2--7.6;  color,  pale  steel  gray.  Streak  soils  paper. 
Comp..  approximately  tellurium.  48;  bismuth,  52. 

TETRAHEDRITE!  Sulph-antimonate  of  copper.  H., 
3.5- -4;  G..  4: 4- -5.1;  color,  between  flint  gray  and  iron 
black;  S..  like  color,  sometimes  inclined  to  brown  and 
cherry  red.  Comp..  sulphur,  23.1;  antimony.  24.8;  cop- 
per. 52.1. 

TIEMANNITE.  Mercuric  selenide.  H..  2.5;  G.,  Utah 
crystals.  8.30- -8.47;  color,  steel  gray  to  blackish  lead 
gray;  S..  nearly  black.  Comp.,  Utah  mineral,  selenium 
29.19;  mercury.  69.84;  with  traces  of  sulphur  and  cal- 
cium. 

TOPAZ.  Fluo-silicate  of  aluminium.  H.,  8;  G..  Utah 
mineral  from  Thomas  Mts..  3.565;  color,  straw  yellow, 
wine  yellow,  white,  grayish,  greenish,  bluish,  reddish. 
Utah  mineral  sherry  colored,  colorless,  white,  grayish, 
black;  S..  uncolored.  Comp.,  Utah  colorless  crystals, 
silica.  31.93;  alumina.  56.26;  fluorine.  20.37;  water',  0.19; 
less  0.8.58. 

TOURMALINE.  A  complex  silicate  of  boron  and 
aluminium.  H..  7--7.S:  G..  2.98--3.20;  color,  black,  brown- 
ish black,  bluish  black,  most  common,  sometimes  rich 
shades  of  blue,  green,  red,  rarely  white  or  colorless. 
Sometimes  red  internally  and  green  externally,  or  band- 
ed in  various  shaues  of  colors  mentioned. 

TRAVERTINE.  Limestone  deposited  in  beds  from 
calcareous  solutions,  usually  banded  in  various  colors, 
such  as  lemon  yellow,  orange  yellow,  brown,  black, 
greenish,  grayish.  Frequently  contains  a  small  amount 
of  silica. 

TSCHERMIGITE.  Hydrous  sulphate  of  aluminium  and 
ammonium!  H..  1--2:  G..  1.50;  color,  white.  Comp., 
ammonium  sulphate.  14.6:  aluminium  sulphate.  37.7: 
water.  47.7. 

TYROLITE.     Hydrous  arsenate  of  copper.     H..  1--1.5; 


Utah  Minerals  and  Localities. 


G.,  3.02- -3.09;  color,  pale  apple  green,  green  and  verdigris 
green,  inclining  to  sky  blue;  S.,  paler  than  color.  Comp., 
Utah  mineral,  arsenic  pentoxide,  28.78;  cupric  oxide, 
45.52;  calcium  oxide,  as  an  impurity,  6.84;  water,  17.26; 
with  small  quantities  ot  zinc,  magnesia,  etc. 

URANINITE.  Uranate  of  uranyl.  H.,  5.5;  G.,  9-9.7; 
'color,  grayish,  greenish,  olive  green,  velvet  black;  S., 
brownish  black,  grayish,  olive  green,  a  little  shining. 
Rich  in  uranium,  and  usually  containing  the  rare  metals, 
zirconium,  lanthanum,  yttrium,  and  sometimes  small 
quantities  of  nitrogen  and  lead. 

UTAHITji.  Hydrous  sulphate  of  iron.  Color,  orange 
yellow,  with  silky  lustre.  Comp.,  sulphur  trioxide.  28.45; 
iron  sesquioxide.  58.82;  •  water,  9.35;  arsenic  pentoxide, 
3.19. 

VARISCITE.  Hydrous  phosphate  of  aluminium.  H., 
4;  G.,  2.408;  color,  deep  emerald  green,  bluish  green  to 
colorless.  Comp.,  Utah  mineral,  phosphorous  pentoxide, 
44.40;  alumina,  32.65;  water,  22.95. 

VESUVIANITE.  A  basic  calcium-aluminium  silicate 
of  uncertain  formula.  H..  6.5;  G.,  3.3S--3.45;  color,  brown 
to  green,  occasionaly  sulphur  yellow,  and  pale  blue.  S. 

V  ii  it  '•. 

WARDITE.  Hydrous  phosphate  of  aluminium.  H.,  5; 
G.,  2.77;  color,  green,  bluish  green;  S..  whito.  Comp., 
phosphorus  pentoxide.  34.46;  aluminium  trioxide.  38.2.1; 
sodium  oxide,  5.98;  magnesium  oxide.  2.40;  with  small 
quantities  of  copper,  iron  and  potassium  oxides,  '.vah-v 
17.87.  ' 

WHEELERITE.  A  yellowish  resin,  resembling  amber. 
Melts  at  154  degrees.  Comp..  about,  carbon,  73.:)7;  hy- 
(Lugen.  7.95:  oxygen,  undetermined. 

WOLLASTONITE.  Calcium  meta-silicate.  H..  4.5-5; 
G..  * 2. 8—2.9;  color,  white  inclined  to  gray,  yellow,  red, 
or  brown;  S.,  white.  Comp..  silica.  51.7;  iime.  49.3. 

WULFENITE.  Molybdate  of  lead.  H..  2.75-3;  G., 
6.7-7;  color,  wax  yellow,  passing  into  orange  yellow, 
siskin  and  olive  green,  yellowish  gray,  grayish  white  to 
nearly  colorless,  brown,  also  orange  to  bright  red;  8.. 
white.  Comp.,  molybdenum  trioxide.  39.3:  lead  oxide, 
60.7. 

WURTZILITE.  Hydrocarbon  compound.  H.,  2-3;  G. 
1.03;  color,  jet  black,  brilliant,  in  very  thin  plates  deep 
red  by  transmitted  light.  Somewhat  seetilc.  and  thin 
shavings  show  some  elasticity. 

ZEUNERI'i^.  Arsenate  of  copper  and  uranium.  H., 
2-2.5;  G..  3.2;  color,  grass  green  to  emerald  and  apple 
green,  greenish  yellow.  Comp.,  arsenic  pentoxide,  22.3: 
uranium,  trioxide,  56;  eupric  oxide,  7.7;  water,  14. 

ZINCITE.  Zinc  oxide.  H.,  4-4.5;  G.,  5.43-5.7:  S..  or- 
ange yellow;  color,  deep  red.  also  orange  yellow.  Comp.. 
oxygen.  19.7;  zinc.  80.3. 


UNIVERSITY  OF  CALIFORNIA  LIBRARY 

Los  Angeles 
This  book  is  DUE  on  the  last  date  stamped  below. 


UCLA/PS 
INTERLIBRARY 


JAN  2? 

UE  TWO  WEEKS  FROMl 


fiLC'Q 


NON-RENEW/ifiLE 
f£B  17-93 

09  1994 


LOANS 


993 


Ait 


Wilfley"- Table  Concentration 


1 69  SonUi  West,  Temple  St,. 
Salt  Lake  City,  Utah 


Binder 

Gaylord  Bros.,  Inc. 

Makers 
Stockton,  Calif. 

PAT.  JAN.  21,  1908 


L  006  556 


UC  SOUTHERN  REGIONAL  LIBRARY  FACILIP 


TN24 
USB  5 
1902 


Geology 
Library 


